Electric bicycle



FIG. 1 is a left side elevation view of the design of an electric bicycle embodying our new design;

FIG. 2 is a right side elevation view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a front and left perspective view thereof.

The broken lines shown in the figures depict portions of the electric bicycle that form no part of the claimed design. 

CLAIM The ornamental design for an electric bicycle, as shown and described. 